"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 用户权限修改即时生效
Create At   : 2022/3/10
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableSeparationOfDuty=on
    gs_guc set -N all -I all -c enableSeparationOfDuty=on;
    gs_om -t restart
    2.创建一个可以创建数据库的用户
    create user u_author_account_0010 with createdb password 'test@123';
    3.使用该用户创建数据库
    create database db_author_account_0016;
    4.管理员去掉该用户创建数据库的权限
    ALTER USER u_author_account_0016  WITH NOCREATEDB  PASSWORD 'test@456';
    5.使用该用户创建数据库
    create database db_author_account_0016;
    6.清理环境
    drop table t_author_account_0010;
    drop user u_author_account_0010,u_author_account_0010_1 cascade;
    gs_guc set -N all -I all -c enableSeparationOfDuty=off;
    gs_om -t restart
Expect      :
    1.成功
    2.成功
    3.成功
    4.成功
    5.失败
    6.清理环境成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.u_name = 'u_security_authen_account_0010'
        self.db_name = 'db_security_authen_account_0010'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        text = '-----step2：创建新用户和表 expect:成功-----'
        self.log.info(text)
        create_cmd = f"drop database if exists {self.db_name};" \
            f"drop user if exists {self.u_name} cascade; " \
            f"create user {self.u_name} with createdb " \
            f"password '{macro.GAUSSDB_INIT_USER_PASSWD}';"
        msg = self.pri_sh.execut_db_sql(create_cmd)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)

        text = f'-----step3：使用该用户创建数据库; expect:成功-----'
        self.log.info(text)
        sql = f"create database {self.db_name};"
        connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)

        text = '-----step4：管理员去掉该用户创建数据库的权限 expect:成功-----'
        self.log.info(text)
        sql = f"alter user {self.u_name}  with nocreatedb " \
            f"password '123{macro.GAUSSDB_INIT_USER_PASSWD}';"
        msg = self.pri_sh.execut_db_sql(sql)
        self.log.info(msg)
        self.assertIn(self.constant.ALTER_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)

        text = f'-----step5：使用该用户创建数据库; expect:失败-----'
        self.log.info(text)
        connect = f'-U {self.u_name} -W 123{macro.GAUSSDB_INIT_USER_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
        self.log.info(msg)
        self.assertIn(self.constant.PERMISSION_DENY_MSG, msg, '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step6：清理环境-----')
        text1 = '-----删除用户 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop database if exists {self.db_name};" \
            f"drop user if exists {self.u_name} cascade;"
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值并重启数据库 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, drop_msg,
                      '执行失败:' + text1)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
